From: Luis Chamberlain Date: Wed, 23 Jun 2021 02:28:23 +0000 (-0700) Subject: PCI: Export pci_dev_trylock() and pci_dev_unlock() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e3a9b1212b9d6cb20751196e338f4a5138d539d3;p=linux.git PCI: Export pci_dev_trylock() and pci_dev_unlock() Other places in the kernel use this form, and so just provide a common path for it. Acked-by: Bjorn Helgaas Signed-off-by: Luis Chamberlain Reviewed-by: Cornelia Huck Link: https://lore.kernel.org/r/20210623022824.308041-2-mcgrof@kernel.org Signed-off-by: Alex Williamson --- diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b717680377a9e..10f08ed3589f9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5028,7 +5028,7 @@ static void pci_dev_lock(struct pci_dev *dev) } /* Return 1 on successful lock, 0 on contention */ -static int pci_dev_trylock(struct pci_dev *dev) +int pci_dev_trylock(struct pci_dev *dev) { if (pci_cfg_access_trylock(dev)) { if (device_trylock(&dev->dev)) @@ -5038,12 +5038,14 @@ static int pci_dev_trylock(struct pci_dev *dev) return 0; } +EXPORT_SYMBOL_GPL(pci_dev_trylock); -static void pci_dev_unlock(struct pci_dev *dev) +void pci_dev_unlock(struct pci_dev *dev) { device_unlock(&dev->dev); pci_cfg_access_unlock(dev); } +EXPORT_SYMBOL_GPL(pci_dev_unlock); static void pci_dev_save_and_disable(struct pci_dev *dev) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 24306504226ab..7765c325706a6 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1621,6 +1621,9 @@ void pci_cfg_access_lock(struct pci_dev *dev); bool pci_cfg_access_trylock(struct pci_dev *dev); void pci_cfg_access_unlock(struct pci_dev *dev); +int pci_dev_trylock(struct pci_dev *dev); +void pci_dev_unlock(struct pci_dev *dev); + /* * PCI domain support. Sometimes called PCI segment (eg by ACPI), * a PCI domain is defined to be a set of PCI buses which share